Thill-coupling



C. WEIR. THILL GOUPLING'. f

l Pat ed Dec. 25, 1888.

(No ModeL) awww@ M. 9V. Maf.

vNITEioy STATES PATENT OFFICE..

.CAL-EB \VEIR, OF MALVERN, PENNSYLVANIA.

THILL=COUPLING- SPECIFICATION forming part of Letters Patent No. 395,021, dated December 25, 1888.

Application filed October Y, 1888. Serial No. 287,010. (No model.) i

To all '1L/'7mm it 'muy concern.:

Be it known that I, CALEB \VE1R, a citizen of the United States, residing at Malvern, in the county of Chester, State of Pennsylvania, have i uvented a new and useful Improvement in lhill- Ctmplings, which improvement is fully set forth in the following specification and accompanying' drawing's.

My invention relates to.improvements in thill-couplings, the object being to provide a thill-conpling which can be easily applied, which will securely retain. the thlls in place and prevent rattling of the same, and which will permit ot' the easy removal ol.' the thills when desired.

'lo attain the desired object, the invention consists of a thill-iron having lugs or studs, and a draw-iron having ears provided with sockets to receive said studs, one of the ears of the draw-iron being movable to allow the attaclunent and detachment of the thill-iron.

It further consists in a thill-iron, a draw-iron having a hinged ear, a clip capable of moving or sliding to allow the movable ear to be opened in order to release the thill-iron, and an eccentric bearing against the axle for drawing the thill-iron in and preventing the opening of the ear, thereby securing the thill in place.

Figure 1 represents a top plan view, partly broken away, ot a thill-coupling embodying my invention. Fig. 2 represents a vertical longitudinal section thereof. Fig. 23 represents a horizontal section tlnn-eot','l'l1e parts being' opened.

Similar' letters vol' reference denotev correspondingparts in the several ti gures.

Referring to the drawings, A designates the thill-iron, whose ear is provided with laterally-extending studs B for attaching the thilliron in place and forming the journals thereof.

C designates thel draw-iron having the ears D and E, provided with sockets ordefpressions F to receive the journals B of the thill-irons and forming bearings for said journals. The ear E is hinged at its rear end to thedrawiron, so as to move laterally and thus open and close.

G designates plates secured to the rear of the draw-iron, and freely embracing the axle and connected therewith, thus permitting sliding movement of the draw-iron, the purpose of which is to allow the turning of the ear to relieve the thill-iron and to secure said iron in position by causing the rear ofthe hinged ear as a shoulder to abut against the axle and prevent the turning of said ear when the clip is moved in. "i

H designates an eccentric pivoted between the plates G, and adapted to bear against the back ofthe axle for moving the draw-iron, said eccentric being provided with a lever or arm, J, adapted to be engaged by a spring or other catch, K, for holding it in position.

'lhe operation is as follows: \Yhen it is desired to secure the thill-iron to the draw-iron, the eccentric is rotated to release its pressure onthe axle, and the draw-iron is moved forward. The hinged ear is now turned, allowing the thill-iron to be placed between the ears of the draw-iron, after which said ear is shut, thus contining the thill-iron within the draw-iron. The eccentric is rotated, thus sliding the draw-iron rearward and causing the heel or shoulder ol the ear E to abut against the axle and prevent said ear from opening', thus securely holding the thill-iron in place. lo remove the thill, it is merely necessary to operate the eccentric in reversed direction,

move the draw-iron forward, and open the hinged ear, whereby the thill-iron is released and may be withdrawn, as is evident.

It is evident that the plates G G may be made in one piece with the drz'rw-iron D, or separately, and secm'ed thereto, as above stated.

Having thus described my invention, whatI claim as new, and desire to secu rc by Letters Patent, is-

l. A thill-coupling consisting of the drawiron having the stationary and movable or hinged ear, the draw-iron plates freely embracing the axle, and an eccentric pivoted to said plates and adapted to bear against the axle and bring the heel of the hinged ear in contact with the axle and prevent said ear from being opened, substantially in the manner and for the purpose described.

2. A thill-coupling consisting of a drawiron having a stationary and movable ear, a clip carried by the draw-iron and freely embracing the axle in order to have a sliding movement on said axle, and devices for mak- IOO ing the movable jan' stationary and seeuring the draw-iron in place, substantially as and Vfor the purpose described.

2l. In a thilLeoupling', the combination, with ary and movable ears, sliding' plates carried b v said ears freely embracing' the axle and permittingl sliding' movements of the drawiron, and an eccentric pivoted to said plates and adapted to engage the axle to prevent the movement of the draw-iron, substantially Ain the manner and for the purpose described.

4. In a thll-eoupling, the draw-iron havinga hinged ear, and plates Carrying' the same 1, freely embracing the axle and permittinj.;` sliding movements ot' said draw-iron, and an eeeentrie or eam adapted to move the drawiron inward to cause the hinged ear thereofto abut against the axle as a stop, substantially l in the manner and for the purpose described.

A tliill-eouplingI @insisting ol? a drawiron capable of. slidingl movement on the axle, and a cam or eeeentrie for holdin g said drawiron in place on the axle, substantially as and the thill-iron, of the draw-iron havngjI station- Al'or the purpose deserild.

In a thill-eoupling, a draw-irim 'I )rovided with ears, one stationary and the otheinlovable, and made capable of a sliding,l movement 011 the axle to allow theopening' oli' saidmovable ear, and a cam or eeeentrie for retaining the said draw-iron in place and securingI the movable jaw in closed position, substantially in the manner and for the purpose tleseribed.

(TA L [C l W Elli.

W itnesses: l

Pnns'roN D. Lewis, J. JoNns STILL. 

